Hydraulic slotted cylinder source
AssigneeWestern Atlas International, Inc.
InventorsOtis A. Johnston, Michael W. Norris
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Abstract
An apparatus for generating acoustic source energy in a liquid medium. A slotted cylinder has an interior volume filled with a fluid. An actuator selectively pressurizes the fluid to expand the slotted cylinder. Movement of the slotted cylinder due to expansion and contraction generates a pressure pulse in the liquid medium to create acoustic source energy. The device provides an acoustic source for marine seismic operations and for use downhole in a borehole.
Claims19
An apparatus for generating acoustic source energy in a liquid medium, comprising:
- a slotted container having walls which define an enclosed interior;
- a fluid within said container interior;
- and
- an actuator for selectively pressurizing said fluid to move said slotted container to generate the acoustic source energy.
An apparatus for generating acoustic source energy in a liquid medium, comprising:
- a slotted cylinder having walls which define an enclosed interior, wherein said cylinder walls are moveable to generate the acoustic source energy in the liquid medium;
- a liquid within said cylinder interior;
- and
- an actuator for selectively changing the pressure of said fluid to move said slotted cylinder walls.
Dependencies are inferred from the claim text.